JEE Main 2015 · 4 Apr · Shift 1 · Chemistry Q39

← JEE Main 2015 · 4 Apr · Shift 1

ChemistrySingle correct+4 / -1Question 39 of 90

Higher order (>3) reactions are rare due to :

low probability of simultaneous collision of all the reacting species

increase in entropy and activation energy as more molecules are involved

shifting of equilibrium towards reactants due to elastic collisions

loss of active species on collision

Answer and worked solution

Official answer: A

A step needs all the reacting species to collide at once with the right energy and orientation. The probability of more than three molecules doing so together is very small.

Topics:Collision theory Order and molecularity

← Previous question Next question →

JEE Main 2015 · 4 Apr · Shift 1, Chemistry question 39